BM64070MUV
BM64070MUV is Three-phase Brushless Motor Pre-driver manufactured by ROHM.
DC Brushless Motor Driver Series
Built-in Speed Control, Sensor-less Three-phase Brushless Motor Pre-driver
General Description
BM64070MUV is the pre-driver IC of sine wave drive for three-phase brushless motor driver that supports
48 V power supply controlling the motor driver constructed in external FETs. The sensor-less drive that the hall devices for the position sensing are unnecessary is adopted. It has a speed feedback control function, and controls output PWM Duty by adjusting the rotational frequency characteristics for the input PWM signal and the rotational frequency affected from motor.
Features
- Speed Control on PWM Duty Input
- External Output FET Nch+Nch
- Built-in Boost Voltage Circuit
- Sensor-less Sine Wave Drive
- Automatic Lead Angle Control
- Dead Time Setting
- Current Limit Function
- Power Save Function
- Direction of Rotation Setting
- Short Brake Control
- Speed Feedback Control
- Able to Set Motor Rotation Speed Table and Various Parameters with the built-in OTP
- Built-in Several Protection (Motor Lock Protection [MLP], High Speed Rotation Protection, Over
Voltage Lock Out [OVLO], Under Voltage Lock
Out [UVLO], Thermal Shutdown [TSD], Over
Current Protection [OCP])
Typical Application Circuit
Key Specifications
- Operating Supply Voltage Range: 28 V to 77 V
- Circuit Current(ICC):
6.4 m A (Typ)
- Operating Temperature Range: -40 °C to +105 °C
Package VQFN040V6060
W (Typ) x D (Typ) x H (Max) 6.0 mm x 6.0 mm x 1.0...
